I have a 2004 ES330 taking into account a hestitation problem. It is fine from a full stop but next I go nearly turns on onto highway ramps, considering I upset the accellarator (sp?) it hesitates for 2 seconds back reving up. I ve taken it to a mechanic and he says it is normal. I have an 2003 Avalon behind the same engine and it jumps off the start and has no hesitation. Mechanic s Assistant: Will the headlights outlook on? Is the battery fully charged? With or without headlights on. Relatively new battery. Mechanic s Assistant: What is the model of your 04 Lexus? ES330 Mechanic s Assistant: Are you fixing your vehicle yourself? What have you tried fittingly far? I ve cleaned the MAF sensor. Checked for connections in the intake. subsequently I put my Turbo OBDII app on, anything seems fine except that the TPS stays constant in the region of 30%. This is a drive-by-wire model therefore it has not throttle cable or usual TPS. I give a positive response the TPS is integrated as soon as the throttle controller/motor. Mechanic s Assistant: all else you want the mechanic to know since I attach you? No, I guess that is it.
I did re-check them tho. The master tech did extensive tests upon the ventilate flow meter and said it was good. subsequently I unplug it and govern the motor, the car runs rude and at 850ish. I can abandoned guess that my other rebuilt ecu has an issue, or the tps needs to be re-adjusted, or someway my maf has died in the midst of all this. I don't think the tps has that much run in the interchange of rpm though? I think it abandoned adjusts it all but 1k..
I'm reviewing your question now, and will say assist taking into account your answer ASAP. Rgds Greg. What defect codes complete you have. Does the engine manage subsequent to the MAF disconnected. behind the loud hissing hermetic this could be your problem. This could be a large vacuum leak ,with the MAF combined it is isolated measuring the air that is getting as soon as the MAF, consequently if the intake manifold is sucking in expose the air to fuel ratio will be totally out and cause the engine to stal